Multiple Choice
Which of the following is the best example of a population?
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50. Population Ecology
Introduction to Population Ecology
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Which of the following is an example of a density-independent factor affecting a population?
A
Natural disaster
B
Disease
C
Predation
D
Competition for resources
Verified step by step guidance1
Understand the concept of density-independent factors: These are factors that affect population size regardless of the population's density. They are typically abiotic factors such as weather events, natural disasters, or human activities.
Identify the options given: Natural disaster, Disease, Predation, Competition for resources.
Analyze each option: Natural disasters (e.g., hurricanes, floods) impact populations regardless of their size or density, making them density-independent.
Contrast with density-dependent factors: Disease, predation, and competition for resources are density-dependent because their effects vary with population density. For example, disease spreads more easily in denser populations.
Conclude that the correct example of a density-independent factor from the options provided is a natural disaster, as it impacts populations regardless of their density.
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